University of Pennsylvania

Johnson & Johnson Consumer Inc.

Mcneil-ppc, Inc.

Dinesh Chandra

Shu Yang

Robert J Gambogi

Andre A Soshinsky

Randall D Kamien

James Makoto Kikkawa

Elisabetta Matsumoto

Ying Zhang

The present invention relates to a tooth-whitening composition comprising (i) a substantially water-insoluble and substantially non-degradable polymer matrix component capable of adhering to the surface of a tooth, provided that if the polymer matrix component is in non-solid form, it is solidifiable by chemical alteration; and (ii) gas- or liquid-filled pores embedded in said polymer matrix component, wherein at least a portion of said gas- or liquid-filled pores have at least one size dimension in the range of about 70 nm to about 5 microns, and wherein the gas- or liquid-filled pores and polymer matrix component possess a difference in refractive index of at least 0.1. The invention is also directed to a tooth-whitening system containing the above composition in combination with an applicator device. The invention is also directed to methods for applying the tooth-whitening composition onto teeth.

Porous polymer coating for tooth whitening

Aspects of the present invention describe soft imprint lithography methods capable of preparing structural features on surfaces. Disclosed methods include surmounting a deformable substrate, having an original form, with a composition, wherein the deformable substrate is capable of achieving at least one predetermined deformed state; predictably deforming said deformable substrate from its original form to the at least one predetermined deformed state; and transferring at least a portion of the composition surmounting the deformed substrate to a receiving substrate.

Patterning structures using deformable substrates

Growing community of inventors

Philadelphia, PA, United States of America

Dinesh Chandra